Inventor
SUGIYAMA KATSUSHI
JP10 patents
⚠️ This page may combine multiple inventors who share the name “SUGIYAMA KATSUSHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
RICOH KK
9 patentsUS5942377AAug 24, 1999
Reversible thermosensitive composition and reversible thermosensitive recording medium using same
RICOH KK24 citations92
US6489265B1Dec 3, 2002
Reversible thermosensitive recording medium, method of producing the medium, information recording devices using the medium, and image formation and erasing method using the medium
RICOH KK16 citations91
US6174836B1Jan 16, 2001
Reversible thermosensitive recording medium, method of producing the medium, information recording devices using the medium, and image formation and erasing method using the medium
RICOH KK29 citations91
US6362130B1Mar 26, 2002
Reversible thermosensitive recording medium, card, label, disk, disk cartridge, tape cassette, method of producing the recording medium, and method of recording and erasing images using the same
RICOH KK16 citations83
US6090192AJul 18, 2000
Reversible thermosensitive coloring composition and reversible thermosensitive recording medium using same
RICOH KK15 citations73
US5955225ASep 21, 1999
Reversible thermosensitive coloring composition and reversible thermosensitive recording medium using same
RICOH KK14 citations73
US5891823AApr 6, 1999
Reversible thermosensitive recording medium
RICOH KK11 citations73
US5868821AFeb 9, 1999
Thermally reversible color forming composition and thermally reversible recording medium using the thermally reversible color forming composition
RICOH KK12 citations73
US6794334B2Sep 21, 2004
Thermo reversible recording medium, member having information memorizing part, thermo reversible recording label, method of and apparatus for image processing
RICOH KK5 citations62